DE69204395D1 - Electrical discharge machining apparatus. - Google Patents

Electrical discharge machining apparatus.

Info

Publication number: DE69204395D1
Authority: DE; Germany
Prior art keywords: discharge machining; electrical discharge; machining apparatus; electrical; machining
Prior art date: 1991-07-29
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

DE69204395T

Other languages

German (de)

Other versions

DE69204395T2 (en

Inventor

Yuji Kaneko

Shinji Ito

Satoru Tajima

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Sodick Co Ltd

Original Assignee

Sodick Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1991-07-29

Filing date

1992-07-22

Publication date

1995-10-05

1992-07-22 Application filed by Sodick Co Ltd filed Critical Sodick Co Ltd

1995-10-05 Publication of DE69204395D1 publication Critical patent/DE69204395D1/en

1996-02-01 Application granted granted Critical

1996-02-01 Publication of DE69204395T2 publication Critical patent/DE69204395T2/en

2012-07-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges
- B23H1/024—Detection of, and response to, abnormal gap conditions, e.g. short circuits
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

DE69204395T 1991-07-29 1992-07-22 Electrical discharge machining apparatus. Expired - Lifetime DE69204395T2 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP3188980A JP3040849B2 (en)	1991-07-29	1991-07-29	Electric discharge machine

Publications (2)

Publication Number	Publication Date
DE69204395D1 true DE69204395D1 (en)	1995-10-05
DE69204395T2 DE69204395T2 (en)	1996-02-01

Family

ID=16233289

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69204395T Expired - Lifetime DE69204395T2 (en)	1991-07-29	1992-07-22	Electrical discharge machining apparatus.

Country Status (5)

Country	Link
US (1)	US5399826A (en)
EP (1)	EP0526089B1 (en)
JP (1)	JP3040849B2 (en)
DE (1)	DE69204395T2 (en)
HK (1)	HK170395A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5539178A (en) *	1992-11-18	1996-07-23	Mitsubishi Denki Kabushiki Kaisha	Method and apparatus for controlling the power supply for electrical discharge machine
JP2914102B2 (en) *	1993-06-30	1999-06-28	三菱電機株式会社	Electric discharge machine
JP4444303B2 (en) *	2007-03-22	2010-03-31	株式会社ソディック	Discharge occurrence detection method and apparatus
GB2462419A (en) *	2008-08-04	2010-02-10	Sarclad Ltd	Method and apparatus for improving roll texturing using electrical discharge machining
CN102909444B (en) *	2012-10-16	2015-02-18	中国石油大学(华东)	Pulsed power supply with parallel high-energy capacitors for electrosparking
CN104646773B (en) *	2014-11-11	2016-08-24	新疆短电弧科技开发有限公司	A kind of portable removable electrical discharge machining system of short electric arc
WO2018189809A1 (en) *	2017-04-11	2018-10-18	三菱電機株式会社	Device for controlling power of electric discharge machine
CN112828403B (en) *	2020-12-30	2022-05-03	山东豪迈机械科技股份有限公司	Electric spark machining discharge state detection circuit and method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3597570A (en) *	1968-05-27	1971-08-03	Mitsubishi Electric Corp	Device for detecting sustained arcing across electrospark machining gaps
NL7116823A (en) *	1971-12-08	1973-06-13
JPS5636011B2 (en) *	1972-03-07	1981-08-21
US3860779A (en) *	1972-03-22	1975-01-14	Charmilles Sa Ateliers	Method and apparatus for positioning an electrode-tool relative to a workpiece in electrical discharge machining
US3739136A (en) *	1972-03-22	1973-06-12	Charmilles Sa Ateliers	Process and apparatus for machining by electro erosion
US4453069A (en) *	1981-05-02	1984-06-05	Inoue-Japax Research Incorporated	EDM Pulse forming circuit arrangement and method
US4504722A (en) *	1982-02-26	1985-03-12	Hitachi Seiko Ltd.	Fully automated machining apparatus optimization for electric discharge machining apparatus
JPS6188770A (en) *	1984-10-05	1986-05-07	Amada Co Ltd	Current control circuit of electrical discharge machine
GB2171822B (en) *	1984-10-05	1988-02-24	Amada Co Ltd	Method and apparatus for controlling an electric discharge machine
CH662764A5 (en) *	1985-03-05	1987-10-30	Charmilles Technologies	METHOD FOR REGULATING MACHINING BY EROSIVE SPARK.
EP0368394A1 (en) *	1988-11-08	1990-05-16	Charmilles Technologies S.A.	Device for limiting the tool electrode withdrawal of a working machine and its use in electroerosion

1991
- 1991-07-29 JP JP3188980A patent/JP3040849B2/en not_active Expired - Fee Related
1992
- 1992-07-22 DE DE69204395T patent/DE69204395T2/en not_active Expired - Lifetime
- 1992-07-22 EP EP92306696A patent/EP0526089B1/en not_active Expired - Lifetime
1993
- 1993-04-29 US US08/053,829 patent/US5399826A/en not_active Expired - Lifetime
1995
- 1995-11-02 HK HK170395A patent/HK170395A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
HK170395A (en)	1995-11-10
DE69204395T2 (en)	1996-02-01
EP0526089A1 (en)	1993-02-03
JP3040849B2 (en)	2000-05-15
EP0526089B1 (en)	1995-08-30
US5399826A (en)	1995-03-21
JPH0538626A (en)	1993-02-19

Legal Events

Date

Code

Title

Description

1996-09-26

8364

No opposition during term of opposition

2012-07-24

R071

Expiry of right

Ref document number: 526089

Country of ref document: EP

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